211193555364 has 225 divisors, whose sum is σ = 610199945355. Its totient is φ = 63694738800.

The previous prime is 211193555341. The next prime is 211193555371. The reversal of 211193555364 is 463555391112.

The square root of 211193555364 is 459558.

It is a perfect power (a square), and thus also a powerful number.

211193555364 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 9 + 35 + 553 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 1000917219 + ... + 1000917429.

Almost surely, 2^211193555364 is an apocalyptic number.

211193555364 is the 459558-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211193555364

211193555364 is an abundant number, since it is smaller than the sum of its proper divisors (399006389991).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211193555364 is an frugal number, since it uses more digits than its factorization.

211193555364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 227 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The spelling of 211193555364 in words is "two hundred eleven billion, one hundred ninety-three million, five hundred fifty-five thousand, three hundred sixty-four".